package day03;

public class OperDemo5 {
    public static void main(String[] args) {
        int age=23;
        String name="唐俊";
        System.out.println(name+"今年"+age+"了");
        System.out.println(10+20+""+30); //3030----------String    从左到右依次计算
        System.out.println(""+10+20+30); //102030--------String
        System.out.println(10+20+30+""); //60------------String
    }
}
